JP3364016B2 - Scroll compressor for refrigerator - Google Patents

Scroll compressor for refrigerator

Info

Publication number
JP3364016B2
JP3364016B2 JP21782494A JP21782494A JP3364016B2 JP 3364016 B2 JP3364016 B2 JP 3364016B2 JP 21782494 A JP21782494 A JP 21782494A JP 21782494 A JP21782494 A JP 21782494A JP 3364016 B2 JP3364016 B2 JP 3364016B2
Authority
JP
Japan
Prior art keywords
scroll
thrust
end plate
orbiting scroll
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP21782494A
Other languages
Japanese (ja)
Other versions
JPH0861256A (en
Inventor
孝征 飯尾
茂樹 三浦
龍平 谷垣
幹彦 石井
真実 竹内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP21782494A priority Critical patent/JP3364016B2/en
Priority to AU21830/95A priority patent/AU2183095A/en
Priority to CA002152454A priority patent/CA2152454C/en
Priority to EP95110171A priority patent/EP0697522A1/en
Priority to CN95108406A priority patent/CN1119704A/en
Priority to KR1019950025540A priority patent/KR0156882B1/en
Publication of JPH0861256A publication Critical patent/JPH0861256A/en
Application granted granted Critical
Publication of JP3364016B2 publication Critical patent/JP3364016B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は冷媒ガス中に含まれる冷
凍機油によって潤滑される冷凍機用スクロール型圧縮機
に関する。BACKGROUND OF THE INVENTION The present invention relates to a cooling gas contained in a refrigerant gas.
The present invention relates to a scroll-type compressor for a refrigerator that is lubricated with freezer oil .

【０００２】[0002]

【従来の技術】従来のスクロール型圧縮機の１例が図３
に示されている。図３において、１は密閉ハウジング
で、カップ状本体２と、これにボルト３にて締結された
フロントエンドプレート４と、これにボルト５によって
締結された筒状部材６とからなる。この筒状部材６を貫
通する回転軸７はベアリング８及び９を介して密閉ハウ
ジング１に回転自在に支持されている。2. Description of the Related Art One example of a conventional scroll type compressor is shown in FIG.
Is shown in. In FIG. 3, reference numeral 1 designates a closed housing, which comprises a cup-shaped main body 2, a front end plate 4 fastened to the cup-shaped main body 2 by a bolt 3, and a tubular member 6 fastened thereto by a bolt 5. A rotary shaft 7 penetrating the tubular member 6 is rotatably supported by the sealed housing 1 via bearings 8 and 9.

【０００３】密閉ハウジング１内には固定スクロール10
及び旋回スクロール14が内蔵されている。この固定スク
ロール10は端板11とその内面に立設されたうず巻状ラッ
プ12を備え、この端板11をボルト13でカップ状本体２に
締結することによって固定スクロール10はハウジング１
内に固定されている。端板11の外周面とカップ状本体２
の内周面とを密接させることによってハウジング１内が
仕切られ、端板11の外側には吐出キャビティ31が形成さ
れ、端板11の内側には吸入室28が限界されている。ま
た、端板11の中央には吐出ポート29が穿設され、この吐
出ポート29は吐出弁30によって開閉されるようになって
いる。A fixed scroll 10 is provided in the closed housing 1.
Also, the orbiting scroll 14 is incorporated. The fixed scroll 10 includes an end plate 11 and a spiral wrap 12 provided upright on the inner surface of the end plate 11. By fastening the end plate 11 to a cup-shaped body 2 with a bolt 13, the fixed scroll 10 is fixed to the housing 1.
It is fixed inside. The outer peripheral surface of the end plate 11 and the cup-shaped body 2
The inside of the housing 1 is partitioned by closely contacting the inner peripheral surface thereof with the discharge cavity 31 formed outside the end plate 11, and the suction chamber 28 is limited inside the end plate 11. A discharge port 29 is formed in the center of the end plate 11, and the discharge port 29 is opened and closed by a discharge valve 30.

【０００４】旋回スクロール14は端板15とその内面に立
設されたうず巻状ラップ16を備え、このうず巻状ラップ
16は固定スクロール10のうず巻状ラップ12と実質的に同
一の寸法及び形状を有している。The orbiting scroll 14 comprises an end plate 15 and a spiral wrap 16 provided upright on the inner surface thereof.
16 has substantially the same size and shape as the spiral wrap 12 of the fixed scroll 10.

【０００５】旋回スクロール14と固定スクロール10とは
相互に公転旋回半径だけ偏心し、かつ、180 °だけ角度
をずらせて図示のように噛み合わされる。かくして、う
ず巻状ラップ12の先端面に埋設されたチップシール17は
端板15の内面に密接し、うず巻状ラップ16の先端面に埋
設されたチップシール18は端板11の内面に密接し、うず
巻状ラップ12と16の側面は複数個所で線接触してうず巻
の中心に対してほぼ点対称をなす複数の圧縮室19a 、19
b が形成され、うず巻の中心部には小室22が形成され
る。The orbiting scroll 14 and the fixed scroll 10 are eccentric to each other by the orbiting orbiting radius, and are meshed with each other with an angle of 180 ° as shown in the figure. Thus, the tip seal 17 embedded in the tip surface of the spiral wrap 12 closely contacts the inner surface of the end plate 15, and the tip seal 18 embedded in the tip surface of the spiral wrap 16 closely contacts the inner surface of the end plate 11. However, the side surfaces of the spiral wraps 12 and 16 are in line contact with each other at a plurality of locations and have a plurality of compression chambers 19a, 19a that are substantially point-symmetric with respect to the center of the spiral.
b is formed, and a small chamber 22 is formed at the center of the spiral.

【０００６】端板15の外面中央部に突設された円筒状ボ
ス20の内部にはドライブブッシュ21が旋回軸受23を介し
て回転自在に嵌装され、このドライブブッシュ21に穿設
されたスライド穴24内には回転軸７の内端から突出する
偏心駆動ピン25がスライド可能に嵌合されている。そし
て、このドライブブッシュ21には旋回スクロールの公転
旋回運動による動的アンバランスを平衡させるためのバ
ランスウェイト27が取り付けられている。A drive bush 21 is rotatably fitted in a cylindrical boss 20 projecting from the center of the outer surface of the end plate 15 through a swivel bearing 23, and a slide bored in the drive bush 21. An eccentric drive pin 25 protruding from the inner end of the rotary shaft 7 is slidably fitted in the hole 24. A balance weight 27 is mounted on the drive bush 21 to balance the dynamic unbalance due to the orbiting motion of the orbiting scroll.

【０００７】なお、26は旋回スクロール14の公転旋回運
動を許容するが、その自転を阻止するためのオルダムリ
ンクからなる自転阻止機構、36はスラストすべり軸受、
37は回転軸７に固定されたバランスウェイトである。Reference numeral 26 is a rotation preventing mechanism composed of an Oldham link for preventing the rotation of the orbiting scroll 14 from revolving, and 36 is a thrust slide bearing.
37 is a balance weight fixed to the rotary shaft 7.

【０００８】しかして、回転軸７を回転させると、偏心
駆動ピン25、ドライブブッシュ21、ボス20等からなる旋
回駆動機構を介して旋回スクロール14が駆動され、旋回
スクロール14は自転阻止機構26によってその自転を阻止
されながら公転旋回半径、即ち、回転軸７と偏心駆動ピ
ン25との偏心量を半径とする円軌道上を公転旋回運動す
る。When the rotary shaft 7 is rotated, the orbiting scroll 14 is driven by the orbiting drive mechanism including the eccentric drive pin 25, the drive bush 21, and the boss 20, and the orbiting scroll 14 is rotated by the rotation preventing mechanism 26. While being prevented from rotating, it makes a revolution revolution movement on a circular orbit whose radius is the revolution revolution radius, that is, the amount of eccentricity between the rotary shaft 7 and the eccentric drive pin 25.

【０００９】すると、うず巻状ラップ12と16の側面の線
接触部が次第にうず巻の中心方向へ移動する。これに伴
って、図示しない吸入口を通って吸入室28へ流入したガ
スがうず巻状ラップ12と16の外終端開口部から各圧縮室
19a 、19b 内へ取り込まれて圧縮されながら中央の小室
22に至り、ここから吐出ポート29を通り吐出弁30を押し
開いて吐出キャビティ31へ吐出され、そこから図示しな
い吐出口を経て流出する。Then, the line contact portions on the side surfaces of the spiral wraps 12 and 16 gradually move toward the center of the spiral. Along with this, the gas flowing into the suction chamber 28 through the suction port (not shown) flows from the outer end openings of the spiral wraps 12 and 16 into the compression chambers.
Small chamber in the center while being taken into 19a and 19b and compressed
22. From there, the discharge valve 30 is pushed through the discharge port 29 and opened to be discharged into the discharge cavity 31, and then discharged from there through a discharge port (not shown).

【００１０】圧縮室19a 、19b 内の圧縮ガスにより旋回
スクロール14にはスラスト荷重が作用する。このスラス
ト荷重は旋回スクロール14の端板15の外面15a の外周縁
と摺接するスラストすべり軸受36を介してフロントエン
ドプレート４の内端面に形成されたスラスト受面4aによ
って支持される。このスラストすべり軸受36はSK材等の
薄い鋼板からなり、フロントエンドプレート４の内端面
上に載置されて廻り止めを施されており、旋回スクロー
ル14の公転旋回運動時にも旋回スクロール14に随伴して
旋回しないようになっている。A thrust load acts on the orbiting scroll 14 by the compressed gas in the compression chambers 19a and 19b. This thrust load is supported by a thrust receiving surface 4a formed on the inner end surface of the front end plate 4 via a thrust slide bearing 36 that is in sliding contact with the outer peripheral edge of the outer surface 15a of the end plate 15 of the orbiting scroll 14. The thrust slide bearing 36 is made of a thin steel plate such as SK material, and is placed on the inner end surface of the front end plate 4 to prevent it from rotating, and is accompanied by the orbiting scroll 14 even when the orbiting scroll 14 revolves. And it is designed not to turn.

【００１１】[0011]

【発明が解決しようとする課題】上記従来のスクロール
型圧縮機においては、旋回スクロール14の端板15の外面
15a 及びこれに摺接するスラストすべり軸受36の摺動面
は吸入室28内に吸入されたガス冷媒中に含まれている冷
凍機油のミストによって潤滑される。In the conventional scroll compressor described above, the outer surface of the end plate 15 of the orbiting scroll 14 is
15a and the sliding surface of the thrust slide bearing 36 that is in sliding contact with this are cooled by the cold refrigerant contained in the gas refrigerant sucked into the suction chamber 28.
Lubricated by a mist of freezer oil.

【００１２】しかして、圧縮機を長時間停止している
と、密閉ハウジング１内に冷媒液が寝込み、その冷媒液
が潤滑油を徐々に希釈させるので、圧縮機の起動時、ス
ラストすべり軸受36の摺動面が殆ど潤滑されない状態で
運転される場合、即ち、ドライ運転となることがある。
そして、圧縮機の起動時、スラストすべり軸受36の摺動
面が吸入ガス冷媒中に含まれる潤滑油のミストによって
潤滑される状態になるまでには若干の時間( 例えば、数
10秒) かかるので、その間ドライ運転によりスラストす
べり軸受36が焼付き等の事故を惹起し、圧縮機の信頼性
が損なわれるおそれがあった。However, when the compressor is stopped for a long time, the refrigerant liquid stagnates in the closed housing 1, and the refrigerant liquid gradually dilutes the lubricating oil. Therefore, when the compressor is started, the thrust slide bearing 36 is used. When the sliding surface is operated in a state where it is hardly lubricated, that is, it may be a dry operation.
Then, when the compressor is started, it takes some time (for example, several seconds) until the sliding surface of the thrust slide bearing 36 becomes in a state of being lubricated by the mist of the lubricating oil contained in the suction gas refrigerant.
Since it takes 10 seconds, during the dry operation, the thrust sliding bearing 36 may cause an accident such as seizure, and the reliability of the compressor may be impaired.

【００１３】[0013]

【課題を解決するための手段】本発明は上記課題を解決
するために発明されたものであって、その要旨とすると
ころは、密閉ハウジング内に固定された固定スクロール
と噛合する旋回スクロールをその自転を阻止しながら公
転旋回運動させることによって冷媒ガスを圧縮し、この
冷媒ガス中に含まれる冷凍機油のミストによって軸受摺
動面等をミスト潤滑する冷凍機用スクロール型圧縮機に
おいて、上記旋回スクロールに作用するスラスト荷重を
この旋回スクロールの端板の外面と摺接するスラストす
べり軸受を介して上記密閉ハウジングのスラスト受面に
よって支持し、上記スラストすべり軸受はリング状の薄
鋼板からなり、その外径は上記旋回スクロールの端板の
外径より大きく、上記密閉ハウジングのスラスト受面に
廻り止めを施されて設置されており、かつ、上記旋回ス
クロールの端板の外面と摺接する上記スラストすべり軸
受の摺動面に固体潤滑剤のコーティング被膜を施したこ
とを特徴とする冷凍機用スクロール型圧縮機にある。SUMMARY OF THE INVENTION The present invention was invented to solve the above problems, it is an Abstract of their is a orbiting scroll to the fixed scroll mesh fixed to the closed housing Refrigerant gas is compressed by making its revolution revolving motion while preventing its rotation, and the bearing slides by the mist of refrigerating machine oil contained in this refrigerant gas.
In a scroll-type compressor for a refrigerating machine in which a moving surface or the like is mist-lubricated , a thrust load acting on the orbiting scroll is applied by a thrust receiving surface of the hermetic housing via a thrust slide bearing which is in sliding contact with an outer surface of an end plate of the orbiting scroll. The thrust slide bearing is supported by a ring-shaped thin
It consists of a steel plate, the outer diameter of which is the end plate of the orbiting scroll.
It is larger than the outer diameter, and the thrust receiving surface of the hermetic housing is
Is installed is subjected to detent, and refrigerator, characterized in that the coated film of the solid lubricant on the outer surface and the sliding surface of sliding contact the thrust sliding bearing of the end plate of the orbiting scroll It is in a scroll type compressor.

【００１４】[0014]

【００１５】上記固体潤滑剤として四フッ化エチレン樹
脂をベースとした固体潤滑剤を使用することができる。As the solid lubricant, a solid lubricant based on tetrafluoroethylene resin can be used.

【００１６】[0016]

【作用】固体潤滑剤のコーティング被膜は冷凍機油の給
油状態が悪い条件下でも優れた耐磨耗性、潤滑性を有す
るので、圧縮機の長期停止後の再起動時にドライ運転乃
至はドライ運転気味となっても旋回スクロールの端板の
外面及びこれと摺接するスラストすべり軸受の摺動面の
異常磨耗や焼き付きを防止しうる。Excellent wear resistance in the coatings to be film of the action Solid body lubricant under lubrication conditions are poor refrigeration oil, because it has a lubricating property, dry running to restart after a prolonged stop of the compressor 乃
Even if dry operation is felt, abnormal wear and seizure of the outer surface of the end plate of the orbiting scroll and the sliding surface of the thrust slide bearing which is in sliding contact therewith can be prevented.

【００１７】[0017]

【００１８】[0018]

【実施例】本発明の第１の実施例が図１に示されてい
る。図１(A) 、(B) 、(C) に示すように、スラストすべ
り軸受36の摺動面36a にはPTFE〔四フッ化エチレン樹脂
（商品名テフロン）〕をベースとした固体潤滑剤を塗
布、焼成することによってコーティング被膜40が施され
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A first embodiment of the invention is shown in FIG. As shown in FIGS. 1 (A), (B), and (C), a solid lubricant based on PTFE (tetrafluoroethylene resin (trade name Teflon)) is used for the sliding surface 36a of the thrust slide bearing 36. The coating film 40 is applied by applying and firing.

【００１９】なお、(D) に示すように、旋回スクロール
14の端板15の外面15a 上に同様のコーティング被膜40を
施すことができ、また、（E)に示すように、スラストす
べり軸受36の摺動面36a 及び旋回スクロール14の端板15
の外面15a の双方に同様のコーティング被膜40を施すこ
とができる。As shown in (D), the orbiting scroll
A similar coating film 40 can be applied on the outer surface 15a of the end plate 15 of the fourteen end plates 14, and the sliding surface 36a of the thrust slide bearing 36 and the end plate 15 of the orbiting scroll 14 can be applied as shown in (E).
A similar coating 40 can be applied to both outer surfaces 15a of the.

【００２０】このコーティング被膜40は冷凍機油の給油
状態が悪く、冷凍機油の膜が形成されない条件下でも優
れた耐摩耗性、潤滑性を有するので、圧縮機の長期停止
後の再起動時に、若干時間（例えば、数10秒) の間摺動
面36a と外面15a がドライ運転乃至はドライ運転気味と
なってもこれらの異常摩耗、焼き付きを防止しうる。な
お、固体潤滑剤は耐摩耗性、潤滑性に優れた材質であれ
ばPTFE以外をベース材とした固体潤滑剤としても良い。
他の構成、作用は図３に示す従来のものと同様であり、
対応する部材には同じ符号が付されている。This coating film 40 has a poor refrigerating machine oil supply condition and has excellent wear resistance and lubricity even under the condition that the refrigerating machine oil film is not formed. Therefore, when the compressor is restarted after being stopped for a long time, , some time (e.g., several tens of seconds) the sliding surface 36a and the outer surface 15a during dry operation 乃 optimum can be a dry operation feeling of abnormal wear, can prevent seizure. The solid lubricant may be a solid lubricant having a base material other than PTFE as long as it has excellent wear resistance and lubricity.
Other configurations and operations are similar to those of the conventional one shown in FIG.
Corresponding members are given the same reference numerals.

【００２１】[0021]

【００２２】[0022]

【００２３】[0023]

【００２４】[0024]

【００２５】[0025]

【発明の効果】本発明においては、旋回スクロールに作
用するスラスト荷重をこの旋回スクロールの端板の外面
と摺接するスラストすべり軸受を介して密閉ハウジング
のスラスト受面によって支持し、かつ、旋回スクロール
の端板の外面と摺接するスラストすべり軸受の摺動面に
固体潤滑剤のコーティング被膜を施したため、圧縮機の
長期停止後の再起動時に、若干の時間ドライ運転乃至は
ドライ運転気味はなっても旋回スクロールの端板の外面
及びこれと摺接するスラストすべり軸受の摺動面の異常
磨耗や焼き付きを防止することができるので、圧縮機の
信頼性を向上することができる。 According to the present invention, the thrust load acting on the orbiting scroll is supported by the thrust receiving surface of the hermetic housing through the thrust slide bearings which are in sliding contact with the outer surface of the end plate of the orbiting scroll, and since subjected to outer surface and a coating film of the sliding surface in <br/> solid lubricant in sliding contact with the thrust sliding bearing of the end plate, when restarting after long-term stoppage of the compressor, some time dry operation 乃 optimum dry Even if the operation is not felt, it is possible to prevent abnormal wear and seizure of the outer surface of the end plate of the orbiting scroll and the sliding surface of the thrust slide bearing which is in sliding contact with the end plate, so that the reliability of the compressor can be improved.

【００２６】[0026]

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例を示し、(A) はスクロール型圧
縮機の縦断面図、(B) はスラストすべり軸受の正面図、
(C) は(B) のＣ−Ｃ線に沿う断面図、(D) は変形例を示
す部分的拡大断面図、(E) は他の変形例を示す部分的拡
大断面図である。[1] shows the actual施例of the present invention, (A) is a longitudinal sectional view of a scroll compressor, (B) is a front view of a thrust sliding bearing,
(C) is a sectional view taken along the line CC of (B), (D) is a partially enlarged sectional view showing a modified example, and (E) is a partially enlarged sectional view showing another modified example.

【図２】従来のスクロール型圧縮機の縦断面図である。FIG. 2 is a vertical cross-sectional view of a conventional scroll compressor .

【符号の説明】[Explanation of symbols]

１ 密閉ハウジング ２ カップ状本体 ４ フロントエンドプレート 4a スラスト軸受 10 固定スクロール 14 旋回スクロール 15 端板 15a 外面 36 スラストすべり軸受 36a 摺動面 40 コーティング被膜 1 sealed housing 2 cup-shaped body 4 Front end plate 4a thrust bearing 10 fixed scroll 14 Orbiting scroll 15 End plate 15a exterior 36 Thrust plain bearing 36a Sliding surface 40 coating

フロントページの続き (72)発明者 谷垣 龍平 愛知県西春日井郡西枇杷島町字旭町三丁 目１番地 三菱重工業株式会社 エアコ ン製作所内 (72)発明者 石井 幹彦 愛知県西春日井郡西枇杷島町字旭町三丁 目１番地 三菱重工業株式会社 エアコ ン製作所内 (72)発明者 竹内 真実 名古屋市中村区岩塚町字高道１番地 三 菱重工業株式会社 名古屋研究所内 (56)参考文献 特開 平４−241785（ＪＰ，Ａ) 特開 平２−277988（ＪＰ，Ａ) 特開 昭60−104787（ＪＰ，Ａ) 特開 昭61−46484（ＪＰ，Ａ) 特開 平１−267382（ＪＰ，Ａ) 特開 昭59−131702（ＪＰ，Ａ) 特開 昭60−135684（ＪＰ，Ａ) 特開 平４−87380（ＪＰ，Ａ) 実開 昭62−173577（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F04C 18/02 311 F04C 29/02 Continuation of the front page (72) Inventor Ryohei Ryupei 3-chome, Asahi-cho, Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture At Asahi-cho, Mitsubishi Heavy Industries, Ltd. (72) Inventor, Mikihiko Ishii Asahi-cho, Nishibashijima-cho, Nishikasugai-gun, Aichi Machi 3-chome No. 1 Mitsubishi Heavy Industries, Ltd. Aircon Mfg. Co., Ltd. (72) Inventor Makoto Takeuchi No. 1 Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya Sanritsu Heavy Industry Co., Ltd. Nagoya Research Laboratory (56) Reference Japanese Patent Laid-Open No. 4- 241785 (JP, A) JP-A-2-277988 (JP, A) JP-A-60-104787 (JP, A) JP-A-61-46484 (JP, A) JP-A-1-267382 (JP, A) JP-A-59-131702 (JP, A) JP-A-60-135684 (JP, A) JP-A-4-87380 (JP, A) Actual development Sho-62-173577 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F04C 18/02 311 F04C 29/02

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 密閉ハウジング内に固定された固定スク
ロールと噛合する旋回スクロールをその自転を阻止しな
がら公転旋回運動させることによって冷媒ガスを圧縮
し、この冷媒ガス中に含まれる冷凍機油のミストによっ
て軸受摺動面等をミスト潤滑する冷凍機用スクロール型
圧縮機において、 上記旋回スクロールに作用するスラスト荷重をこの旋回
スクロールの端板の外面と摺接するスラストすべり軸受
を介して上記密閉ハウジングのスラスト受面によって支
持し、上記スラストすべり軸受はリング状の薄鋼板から
なり、その外径は上記旋回スクロールの端板の外径より
大きく、上記密閉ハウジングのスラスト受面に廻り止め
を施されて設置されており、かつ、上記旋回スクロール
の端板の外面と摺接する上記スラストすべり軸受の摺動
面に固体潤滑剤のコーティング被膜を施したことを特徴
とする冷凍機用スクロール型圧縮機。1. A refrigerant gas is compressed by causing an orbiting scroll, which meshes with a fixed scroll fixed in a hermetic housing, to revolve while preventing its rotation, and a refrigerant gas is mist contained in the refrigerant gas. Therefore, in a scroll-type compressor for a refrigerator in which a bearing sliding surface or the like is mist-lubricated , the thrust load acting on the orbiting scroll is passed through a thrust slide bearing that is in sliding contact with the outer surface of the end plate of the orbiting scroll. It is supported by the thrust receiving surface of the closed housing, and the thrust slide bearing is made of a ring-shaped thin steel plate.
The outer diameter is larger than the outer diameter of the end plate of the orbiting scroll.
Large, prevents rotation on the thrust receiving surface of the sealed housing
The is installed is subjected, and the sliding of the outer surface in sliding contact said thrust sliding bearing of the end plate of the orbiting scroll
A scroll-type compressor for a refrigerating machine having a surface coated with a solid lubricant. 【請求項２】 上記固体潤滑剤として四フッ化エチレン
樹脂をベースとした固体潤滑剤を使用したことを特徴と
する請求項１記載の冷凍機用スクロール型圧縮機。2. The scroll compressor for a refrigerator according to claim 1, wherein a solid lubricant based on tetrafluoroethylene resin is used as the solid lubricant.
JP21782494A 1994-08-19 1994-08-19 Scroll compressor for refrigerator Expired - Lifetime JP3364016B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP21782494A JP3364016B2 (en) 1994-08-19 1994-08-19 Scroll compressor for refrigerator
AU21830/95A AU2183095A (en) 1994-08-19 1995-06-21 Scroll compressor
CA002152454A CA2152454C (en) 1994-08-19 1995-06-22 Scroll compressor
EP95110171A EP0697522A1 (en) 1994-08-19 1995-06-29 Scroll compressor
CN95108406A CN1119704A (en) 1994-08-19 1995-07-17 Vortex compressor
KR1019950025540A KR0156882B1 (en) 1994-08-19 1995-08-19 Scroll type compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21782494A JP3364016B2 (en) 1994-08-19 1994-08-19 Scroll compressor for refrigerator

Publications (2)

Publication Number Publication Date
JPH0861256A JPH0861256A (en) 1996-03-08
JP3364016B2 true JP3364016B2 (en) 2003-01-08

Family

ID=16710325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21782494A Expired - Lifetime JP3364016B2 (en) 1994-08-19 1994-08-19 Scroll compressor for refrigerator

Country Status (6)

Country Link
EP (1) EP0697522A1 (en)
JP (1) JP3364016B2 (en)
KR (1) KR0156882B1 (en)
CN (1) CN1119704A (en)
AU (1) AU2183095A (en)
CA (1) CA2152454C (en)

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WO2013094351A1 (en) 2011-12-22 2013-06-27 大豊工業株式会社 Sliding member and manufacturing method therefor

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EP0732502B1 (en) * 1995-03-13 1999-10-13 Mitsubishi Jukogyo Kabushiki Kaisha Scroll type fluid machine
JP4972952B2 (en) * 2006-02-17 2012-07-11 ダイキン工業株式会社 Fluid machinery
JP2008286135A (en) * 2007-05-18 2008-11-27 Denso Corp Compressor
JP5358018B2 (en) * 2010-02-18 2013-12-04 東芝キヤリア株式会社 Rotary compressor and refrigeration cycle apparatus
CN104703898A (en) * 2012-10-05 2015-06-10 旭硝子株式会社 Roller conveyor, plate-shaped body inspection device, and glass plate manufacturing device
CN103089622A (en) * 2012-11-14 2013-05-08 柳州易舟汽车空调有限公司 Scroll compressor
JP2014196680A (en) * 2013-03-29 2014-10-16 株式会社日立製作所 Refrigerant compressor
JP6442171B2 (en) * 2014-06-27 2018-12-19 三菱重工サーマルシステムズ株式会社 Scroll compressor
KR101783095B1 (en) 2015-08-24 2017-10-24 서울특별시 System and method of controling sequentially water clarifying place
CN114837947A (en) * 2022-05-05 2022-08-02 江苏太平洋精锻科技股份有限公司 Anti-rotation mechanism of air conditioner compressor of electric automobile

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Publication number Priority date Publication date Assignee Title
JPH0617674B2 (en) * 1983-11-09 1994-03-09 株式会社日立製作所 Scroll fluid machinery
JPS6140357A (en) * 1984-07-31 1986-02-26 Otsuka Chem Co Ltd Polyphenylene sulfide resin composition
JPH02197506A (en) * 1989-01-25 1990-08-06 Toshiba Corp Production of scroll vane

Cited By (7)

* Cited by examiner, † Cited by third party
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WO2005068840A1 (en) 2004-01-15 2005-07-28 Daikin Industries, Ltd. Fluid machine
US7563510B2 (en) 2004-01-15 2009-07-21 Daikin Industries, Ltd. Fluid machinery
JP2007332851A (en) * 2006-06-14 2007-12-27 Mitsubishi Heavy Ind Ltd Scroll compressor
US7658600B2 (en) 2006-06-14 2010-02-09 Mitsubishi Heavy Industries, Ltd. Scroll compressor with thrustplate peeling prevention
WO2013094351A1 (en) 2011-12-22 2013-06-27 大豊工業株式会社 Sliding member and manufacturing method therefor
JP2013130273A (en) * 2011-12-22 2013-07-04 Taiho Kogyo Co Ltd Sliding member and manufacturing method therefor
US9506499B2 (en) 2011-12-22 2016-11-29 Taiho Kogyo Co., Ltd. Sliding member and manufacturing method therefor

Also Published As

Publication number Publication date
JPH0861256A (en) 1996-03-08
EP0697522A1 (en) 1996-02-21
KR0156882B1 (en) 1999-01-15
KR960008057A (en) 1996-03-22
AU2183095A (en) 1996-02-29
CA2152454C (en) 1998-11-17
CA2152454A1 (en) 1996-02-20
CN1119704A (en) 1996-04-03

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